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<div class="title">RasterImages.cs</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">    VectSharp - A light library for C# vector graphics.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">    Copyright (C) 2020  Giorgio Bianchini</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">    This program is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">    it under the terms of the GNU Affero General Public License as</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">    published by the Free Software Foundation, version 3.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">    This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    GNU Affero General Public License for more details.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">    You should have received a copy of the GNU Affero General Public License</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keyword">using</span> MuPDFCore;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="keyword">using</span> System.IO;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">using</span> System.Runtime.InteropServices;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_vect_sharp_1_1_mu_p_d_f_utils.html">VectSharp.MuPDFUtils</a></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;{<span class="comment"></span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">    /// &lt;summary&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">    /// A &lt;see cref=&quot;RasterImage&quot;/&gt; created from a file.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">    /// &lt;/summary&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html">   28</a></span>&#160;<span class="comment"></span>    <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html">RasterImageFile</a> : <a class="code" href="class_vect_sharp_1_1_raster_image.html">RasterImage</a></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    {<span class="comment"></span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">        /// &lt;summary&gt;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">        /// Creates a new &lt;see cref=&quot;RasterImage&quot;/&gt; from the specified file.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">        /// &lt;/summary&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">        /// &lt;param name=&quot;fileName&quot;&gt;The path to the file containing the image.&lt;/param&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment">        /// &lt;param name=&quot;pageNumber&quot;&gt;The number of the page in the file from which the image should be created, starting at 0. Only useful for multi-page formats, such as PDF.&lt;/param&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">        /// &lt;param name=&quot;scale&quot;&gt;The scale factor at which to render the image.&lt;/param&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">        /// &lt;param name=&quot;alpha&quot;&gt;A boolean value indicating whether transparency (alpha) data from the image should be preserved or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">        /// &lt;param name=&quot;interpolate&quot;&gt;A boolean value indicating whether the image should be interpolated when it is resized or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html#a0bc214699250ad8e624256d56c83b254">   38</a></span>&#160;<span class="comment"></span>        <span class="keyword">public</span> <a class="code" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html#a0bc214699250ad8e624256d56c83b254">RasterImageFile</a>(<span class="keywordtype">string</span> fileName, <span class="keywordtype">int</span> pageNumber = 0, <span class="keywordtype">double</span> scale = 1, <span class="keywordtype">bool</span> alpha = <span class="keyword">true</span>, <span class="keywordtype">bool</span> interpolate = <span class="keyword">true</span>)</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        {</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            <span class="keyword">using</span> (MuPDFContext context = <span class="keyword">new</span> MuPDFContext())</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            {</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;                <span class="keyword">using</span> (MuPDFDocument document = <span class="keyword">new</span> MuPDFDocument(context, fileName))</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;                {</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;                    RoundedRectangle roundedBounds = document.Pages[pageNumber].Bounds.Round(scale);</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160; </div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5c022bcd18b4e37c26df5ec67c8c2b71">Width</a> = roundedBounds.Width;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a7fdcc792321aae93369d85c280bf696c">Height</a> = roundedBounds.Height;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a3012ff06029d327b3a280260fb2207f2">HasAlpha</a> = alpha;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5a5e8f5228b8aa3aa103693265fa900e">Interpolate</a> = interpolate;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160; </div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#af83687d608eeb00d2f121bf04321f317">Id</a> = Guid.NewGuid().ToString();</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;                    <span class="keywordtype">int</span> imageSize = document.GetRenderedSize(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB);</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160; </div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a> = Marshal.AllocHGlobal(imageSize);</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a07a7d81044a8a90b2499b6af9acf8de0">DataHolder</a> = <span class="keyword">new</span> <a class="code" href="class_vect_sharp_1_1_disposable_int_ptr.html">DisposableIntPtr</a>(this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a>);</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;                    GC.AddMemoryPressure(imageSize);</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                    document.Render(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB, <span class="keyword">this</span>.ImageDataAddress);</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                }</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            }</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        }</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    }</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">    /// &lt;summary&gt;</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">    /// A &lt;see cref=&quot;RasterImage&quot;/&gt; created from a stream.</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment">    /// &lt;/summary&gt;</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html">   69</a></span>&#160;<span class="comment"></span>    <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html">RasterImageStream</a> : <a class="code" href="class_vect_sharp_1_1_raster_image.html">RasterImage</a></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    {<span class="comment"></span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">        /// &lt;summary&gt;</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">        /// Creates a new &lt;see cref=&quot;RasterImage&quot;/&gt; from the specified stream.</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">        /// &lt;/summary&gt;</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">        /// &lt;param name=&quot;imageStream&quot;&gt;The stream containing the image data.&lt;/param&gt;</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">        /// &lt;param name=&quot;fileType&quot;&gt;The type of the image contained in the stream.&lt;/param&gt;</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">        /// &lt;param name=&quot;pageNumber&quot;&gt;The number of the page in the file from which the image should be created, starting at 0. Only useful for multi-page formats, such as PDF.&lt;/param&gt;</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">        /// &lt;param name=&quot;scale&quot;&gt;The scale factor at which to render the image.&lt;/param&gt;</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">        /// &lt;param name=&quot;alpha&quot;&gt;A boolean value indicating whether transparency (alpha) data from the image should be preserved or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">        /// &lt;param name=&quot;interpolate&quot;&gt;A boolean value indicating whether the image should be interpolated when it is resized or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#a7c8985ec96435b9895297ff674f531c2">   80</a></span>&#160;<span class="comment"></span>        <span class="keyword">public</span> <a class="code" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#a7c8985ec96435b9895297ff674f531c2">RasterImageStream</a>(Stream imageStream, InputFileTypes fileType, <span class="keywordtype">int</span> pageNumber = 0, <span class="keywordtype">double</span> scale = 1, <span class="keywordtype">bool</span> alpha = <span class="keyword">true</span>, <span class="keywordtype">bool</span> interpolate = <span class="keyword">true</span>)</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        {</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            <span class="keyword">using</span> (MuPDFContext context = <span class="keyword">new</span> MuPDFContext())</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                IntPtr originalImageAddress;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;                <span class="keywordtype">long</span> originalImageLength;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                IDisposable toBeDisposed = <span class="keyword">null</span>;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                GCHandle handleToFree;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                <span class="keywordflow">if</span> (imageStream is MemoryStream ms)</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;                {</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                    <span class="keywordtype">int</span> origin = (int)ms.Seek(0, SeekOrigin.Begin);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;                    originalImageLength = ms.Length;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160; </div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;                    handleToFree = GCHandle.Alloc(ms.GetBuffer(), GCHandleType.Pinned);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                    originalImageAddress = handleToFree.AddrOfPinnedObject();</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                {</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                    MemoryStream mem = <span class="keyword">new</span> MemoryStream((<span class="keywordtype">int</span>)imageStream.Length);</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;                    imageStream.CopyTo(mem);</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160; </div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                    toBeDisposed = mem;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160; </div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                    <span class="keywordtype">int</span> origin = (int)mem.Seek(0, SeekOrigin.Begin);</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                    originalImageLength = mem.Length;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                    handleToFree = GCHandle.Alloc(mem.GetBuffer(), GCHandleType.Pinned);</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                    originalImageAddress = handleToFree.AddrOfPinnedObject();</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                }</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                <span class="keyword">using</span> (MuPDFDocument document = <span class="keyword">new</span> MuPDFDocument(context, originalImageAddress, originalImageLength, fileType))</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;                {</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;                    RoundedRectangle roundedBounds = document.Pages[pageNumber].Bounds.Round(scale);</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5c022bcd18b4e37c26df5ec67c8c2b71">Width</a> = roundedBounds.Width;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a7fdcc792321aae93369d85c280bf696c">Height</a> = roundedBounds.Height;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160; </div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a3012ff06029d327b3a280260fb2207f2">HasAlpha</a> = alpha;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5a5e8f5228b8aa3aa103693265fa900e">Interpolate</a> = interpolate;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160; </div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#af83687d608eeb00d2f121bf04321f317">Id</a> = Guid.NewGuid().ToString();</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                    <span class="keywordtype">int</span> imageSize = document.GetRenderedSize(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB);</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a> = Marshal.AllocHGlobal(imageSize);</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a07a7d81044a8a90b2499b6af9acf8de0">DataHolder</a> = <span class="keyword">new</span> <a class="code" href="class_vect_sharp_1_1_disposable_int_ptr.html">DisposableIntPtr</a>(this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a>);</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                    GC.AddMemoryPressure(imageSize);</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160; </div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                    document.Render(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB, <span class="keyword">this</span>.ImageDataAddress);</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                handleToFree.Free();</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                toBeDisposed?.Dispose();</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            }</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;        }</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="comment">        /// &lt;summary&gt;</span></div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="comment">        /// Creates a new &lt;see cref=&quot;RasterImage&quot;/&gt; from the specified stream.</span></div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment">        /// &lt;/summary&gt;</span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment">        /// &lt;param name=&quot;imageAddress&quot;&gt;A pointer to the address where the image data is contained.&lt;/param&gt;</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="comment">        /// &lt;param name=&quot;imageLength&quot;&gt;The length in bytes of the image data.&lt;/param&gt;</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="comment">        /// &lt;param name=&quot;fileType&quot;&gt;The type of the image contained in the stream.&lt;/param&gt;</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="comment">        /// &lt;param name=&quot;pageNumber&quot;&gt;The number of the page in the file from which the image should be created, starting at 0. Only useful for multi-page formats, such as PDF.&lt;/param&gt;</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="comment">        /// &lt;param name=&quot;scale&quot;&gt;The scale factor at which to render the image.&lt;/param&gt;</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="comment">        /// &lt;param name=&quot;alpha&quot;&gt;A boolean value indicating whether transparency (alpha) data from the image should be preserved or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="comment">        /// &lt;param name=&quot;interpolate&quot;&gt;A boolean value indicating whether the image should be interpolated when it is resized or not.&lt;/param&gt;</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#aa501f4dd112e351eb161928143e17683">  148</a></span>&#160;<span class="comment"></span>        <span class="keyword">public</span> <a class="code" href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#aa501f4dd112e351eb161928143e17683">RasterImageStream</a>(IntPtr imageAddress, <span class="keywordtype">long</span> imageLength, InputFileTypes fileType, <span class="keywordtype">int</span> pageNumber = 0, <span class="keywordtype">double</span> scale = 1, <span class="keywordtype">bool</span> alpha = <span class="keyword">true</span>, <span class="keywordtype">bool</span> interpolate = <span class="keyword">true</span>)</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        {</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            <span class="keyword">using</span> (MuPDFContext context = <span class="keyword">new</span> MuPDFContext())</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            {</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                <span class="keyword">using</span> (MuPDFDocument document = <span class="keyword">new</span> MuPDFDocument(context, imageAddress, imageLength, fileType))</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                {</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                    RoundedRectangle roundedBounds = document.Pages[pageNumber].Bounds.Round(scale);</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5c022bcd18b4e37c26df5ec67c8c2b71">Width</a> = roundedBounds.Width;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a7fdcc792321aae93369d85c280bf696c">Height</a> = roundedBounds.Height;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a3012ff06029d327b3a280260fb2207f2">HasAlpha</a> = alpha;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a5a5e8f5228b8aa3aa103693265fa900e">Interpolate</a> = interpolate;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#af83687d608eeb00d2f121bf04321f317">Id</a> = Guid.NewGuid().ToString();</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                    <span class="keywordtype">int</span> imageSize = document.GetRenderedSize(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB);</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160; </div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a> = Marshal.AllocHGlobal(imageSize);</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                    this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#a07a7d81044a8a90b2499b6af9acf8de0">DataHolder</a> = <span class="keyword">new</span> <a class="code" href="class_vect_sharp_1_1_disposable_int_ptr.html">DisposableIntPtr</a>(this.<a class="code" href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">ImageDataAddress</a>);</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                    GC.AddMemoryPressure(imageSize);</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160; </div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                    document.Render(pageNumber, scale, alpha ? MuPDFCore.PixelFormats.RGBA : MuPDFCore.PixelFormats.RGB, <span class="keyword">this</span>.ImageDataAddress);</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                }</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;            }</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;        }</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    }</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;}</div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aclass_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream_html_aa501f4dd112e351eb161928143e17683"><div class="ttname"><a href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#aa501f4dd112e351eb161928143e17683">VectSharp.MuPDFUtils.RasterImageStream.RasterImageStream</a></div><div class="ttdeci">RasterImageStream(IntPtr imageAddress, long imageLength, InputFileTypes fileType, int pageNumber=0, double scale=1, bool alpha=true, bool interpolate=true)</div><div class="ttdoc">Creates a new RasterImage from the specified stream.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_images_8cs_source.html#l00148">RasterImages.cs:148</a></div></div>
<div class="ttc" id="anamespace_vect_sharp_1_1_mu_p_d_f_utils_html"><div class="ttname"><a href="namespace_vect_sharp_1_1_mu_p_d_f_utils.html">VectSharp.MuPDFUtils</a></div><div class="ttdef"><b>Definition:</b> <a href="_image_u_r_i_parser_8cs_source.html#l00024">ImageURIParser.cs:25</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html">VectSharp.RasterImage</a></div><div class="ttdoc">Represents a raster image, created from raw pixel data. Consider using the derived classes included i...</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00098">RasterImage.cs:99</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file_html_a0bc214699250ad8e624256d56c83b254"><div class="ttname"><a href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html#a0bc214699250ad8e624256d56c83b254">VectSharp.MuPDFUtils.RasterImageFile.RasterImageFile</a></div><div class="ttdeci">RasterImageFile(string fileName, int pageNumber=0, double scale=1, bool alpha=true, bool interpolate=true)</div><div class="ttdoc">Creates a new RasterImage from the specified file.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_images_8cs_source.html#l00038">RasterImages.cs:38</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_disposable_int_ptr_html"><div class="ttname"><a href="class_vect_sharp_1_1_disposable_int_ptr.html">VectSharp.DisposableIntPtr</a></div><div class="ttdoc">An IDisposable wrapper around an IntPtr that frees the allocated memory when it is disposed.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00053">RasterImage.cs:54</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_a5c022bcd18b4e37c26df5ec67c8c2b71"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#a5c022bcd18b4e37c26df5ec67c8c2b71">VectSharp.RasterImage.Width</a></div><div class="ttdeci">int Width</div><div class="ttdoc">The width in pixels of the image.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00123">RasterImage.cs:123</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream_html_a7c8985ec96435b9895297ff674f531c2"><div class="ttname"><a href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html#a7c8985ec96435b9895297ff674f531c2">VectSharp.MuPDFUtils.RasterImageStream.RasterImageStream</a></div><div class="ttdeci">RasterImageStream(Stream imageStream, InputFileTypes fileType, int pageNumber=0, double scale=1, bool alpha=true, bool interpolate=true)</div><div class="ttdoc">Creates a new RasterImage from the specified stream.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_images_8cs_source.html#l00080">RasterImages.cs:80</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream_html"><div class="ttname"><a href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_stream.html">VectSharp.MuPDFUtils.RasterImageStream</a></div><div class="ttdoc">A RasterImage created from a stream.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_images_8cs_source.html#l00069">RasterImages.cs:70</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_a5a5e8f5228b8aa3aa103693265fa900e"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#a5a5e8f5228b8aa3aa103693265fa900e">VectSharp.RasterImage.Interpolate</a></div><div class="ttdeci">bool Interpolate</div><div class="ttdoc">Determines whether the image should be interpolated when it is resized.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00133">RasterImage.cs:133</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_a3012ff06029d327b3a280260fb2207f2"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#a3012ff06029d327b3a280260fb2207f2">VectSharp.RasterImage.HasAlpha</a></div><div class="ttdeci">bool HasAlpha</div><div class="ttdoc">Determines whether the image has an alpha channel.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00118">RasterImage.cs:118</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_a07a7d81044a8a90b2499b6af9acf8de0"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#a07a7d81044a8a90b2499b6af9acf8de0">VectSharp.RasterImage.DataHolder</a></div><div class="ttdeci">IDisposable DataHolder</div><div class="ttdoc">An IDisposable that will be disposed when the image is disposed.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00108">RasterImage.cs:108</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_a7fdcc792321aae93369d85c280bf696c"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#a7fdcc792321aae93369d85c280bf696c">VectSharp.RasterImage.Height</a></div><div class="ttdeci">int Height</div><div class="ttdoc">The height in pixels of the image.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00128">RasterImage.cs:128</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_aaa0c2c00b3f570797d0eb31ea899dae2"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#aaa0c2c00b3f570797d0eb31ea899dae2">VectSharp.RasterImage.ImageDataAddress</a></div><div class="ttdeci">IntPtr ImageDataAddress</div><div class="ttdoc">The memory address of the image pixel data.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00103">RasterImage.cs:103</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file_html"><div class="ttname"><a href="class_vect_sharp_1_1_mu_p_d_f_utils_1_1_raster_image_file.html">VectSharp.MuPDFUtils.RasterImageFile</a></div><div class="ttdoc">A RasterImage created from a file.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_images_8cs_source.html#l00028">RasterImages.cs:29</a></div></div>
<div class="ttc" id="aclass_vect_sharp_1_1_raster_image_html_af83687d608eeb00d2f121bf04321f317"><div class="ttname"><a href="class_vect_sharp_1_1_raster_image.html#af83687d608eeb00d2f121bf04321f317">VectSharp.RasterImage.Id</a></div><div class="ttdeci">string Id</div><div class="ttdoc">A univocal identifier for this image.</div><div class="ttdef"><b>Definition:</b> <a href="_raster_image_8cs_source.html#l00113">RasterImage.cs:113</a></div></div>
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